For Polystichum
Kramer, K.U., and P.S. Green. 1990. Pteridophytes and Gymnosperms. In K. Kubitzki, ed., The families and genera of vascular plants. Springer-Verlag, Berlin.
Wagner, D.H. 1993. Polystichum. In Flora of North America Editorial Committee. 1993b. Flora of North America north of Mexico. Volume 2, pteridophytes and gymnosperms. Oxford Univ. Press, New York, NY. 475 pp.
Zhang, L.-B., and D.S. Barrington. 2013. Cyrtomium. In Flora of China, volume 2. Missouri Bot. Garden.
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